CBSE Class 10 Science 2017 · Paper 31(B)/C · Question 30
A student has to determine the focal length of a given
- (i)concave mirror ;
- (ii)convex lens by focusing the image of a distant object on a screen. He would observe that the screen is placed on the same side as the object :
- (a)in both cases
- (b)in neither of the two cases
- (c)in case (i) and not in case (ii)
- (d)in case (ii) and not in case (i)
Answer
(c) in case (i) and not in case (ii)
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